s390x/cpumodel: wire up 8561 and 8562 as gen15 machines

8561 and 8562 will be gen15 machines. There is no name yet, let us use
gen15a and gen15b as base name. Later on we can provide aliases with
the proper name.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20190429090250.7648-10-borntraeger@de.ibm.com>
Reviewed-by: NDavid Hildenbrand <david@redhat.com>
Signed-off-by: NCornelia Huck <cohuck@redhat.com>

target/s390x/cpu_models.c

@@ -43,10 +43,9 @@
     }
 
 /*
- * CPU definiton list in order of release. For now, base features of a
- * following release are always a subset of base features of the previous
- * release. Same is correct for the other feature sets.
- * A BC release always follows the corresponding EC release.
+ * CPU definition list in order of release. Up to generation 14 base features
+ * of a following release have been a superset of the previous release. With
+ * generation 15 one base feature and one optional feature have been deprecated.
  */
 static S390CPUDef s390_cpu_defs[] = {
     CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U, "z900", "IBM zSeries 900 GA1"),
@@ -83,6 +82,8 @@ static S390CPUDef s390_cpu_defs[] = {
     CPUDEF_INIT(0x3906, 14, 1, 47, 0x08000000U, "z14", "IBM z14 GA1"),
     CPUDEF_INIT(0x3906, 14, 2, 47, 0x08000000U, "z14.2", "IBM z14 GA2"),
     CPUDEF_INIT(0x3907, 14, 1, 47, 0x08000000U, "z14ZR1", "IBM z14 Model ZR1 GA1"),
+    CPUDEF_INIT(0x8561, 15, 1, 47, 0x08000000U, "gen15a", "IBM 8561 GA1"),
+    CPUDEF_INIT(0x8562, 15, 1, 47, 0x08000000U, "gen15b", "IBM 8562 GA1"),
 };
 
 #define QEMU_MAX_CPU_TYPE 0x2827